Forney Plasma Torch Manual De Instrucciones página 23

The following table represents the most common problems associated with using the Forney 250P+
plasma system and an explanation on how to resolve them.
If you are unable to fix the problem by following the basic troubleshooting guide or if you need further
assistance:
1. Call your Forney Authorized Dealer;
2. Call Forney Customer Service.
TROUBLE EXPERIENCED
GREEN LED OFF, Fan not
operating.
GREEN LED ON, YELLOW
Over-temperature LED
ON.
GREEN LED ON, YELLOW
Over-temperature LED
OFF, no air flow when
torch switch pressed.
GREEN LED ON, YELLOW
Over-temperature LED
OFF. Air flows, Pilot arc
does not start.
Torch has pilot arc but
does not cut.
The arc does not transfer
to the work piece.
POSSIBLE REASONS
No Input Power
Unit is overheated.
Air flow obstructed
Shield cup not properly
installed
Faulty torch switch or
parts assembly in torch
holder
Faulty main PC Board
Faulty torch parts
Faulty main PC Board
Insufficient air flow/
pressure
Work lead not con-
nected
AC input power too low Insure system has proper input power source
Faulty main PC Board
Insufficient work clamp
contact with the work
piece
Torch may be too far
away from the work
piece.
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RECOMMENDED SOLUTION
Connect system to proper input power source.
Verify that the power is on the main power panel
or at the disconnect-power switch box.
Insure power switch (rear) is in the On position
Allow unit to cool with internal fan running, once
cool reduce arc cutting time to below duty cycle
rating of the system.
Check torch consumables for proper installation.
Examine the consumables for wear, debris, ob-
structed holes and replace worn parts with new
Forney consumable parts
Inspect air compressor for proper operation.
Check that torch consumables are properly in-
stalled.
Check for corrosion on the contacts in the torch
handle tip and the contact ring on the shield cup.
Clean if necessary.
Replace torch.
Trained technical service required.
Replace torch.
Trained technical service required.
Ensure that the drain valve on the bottom of the
machine is closed by turning clockwise by hand
until tight.
Properly connect the work clamp to the work
piece.
If used, eliminate or reduce length of extension
cord.
Trained technical service required.
Clean the area where the work clamp attaches
to the work piece to insure a good metal to metal
connection.
Inspect the work clamp and its lead for damage,
repair or replace as necessary.
Move torch closer to the work piece and fire the
torch again.
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